/Engine/Source/Runtime/GeometryCore/Public/Operations/MeshMeshCut.h
class FMeshSelfCut
bool
bCutCoplanar
If true, detect coplanar faces and re-triangulate so that the triangulations match 1:1 (TODO: not implemented!)
bool
bTrackInsertedVertices
If true, record vertex insertions
FDynamicMesh3&...
Mesh
InputsMesh to cut  note thatFMeshSelfCut::Cutis destructive, so this are an output
double
SnapTolerance
Tolerance distance for considering a point to be on a vertex, edge or plane
TArray< int >
VertexChains
Outputs Packed chains of vertex IDs, representing the vertices for each segment in the mesh Packed as the number of vertices in that chain, followed by that many vertex ids, per segment NOT 1:1 w/ segments; some segments may have failed to insert